v3.26.1
Guarantees (Details)
$ in Millions
6 Months Ended
Mar. 31, 2026
USD ($)
Movement in Standard Product Warranty Accrual [Roll Forward]  
Balance at September 30, 2025 $ 120
Accruals for warranties issued 48
Settlements made (52)
Changes in estimates to pre-existing warranties 48
Currency translation (1)
Balance at March 31, 2026 $ 163